TY  - GEN
AU  - Langman,Rodney E.
TI  - The immune system: evolutionary principles guide our understanding of this complex biological defense system 
SN  - 012436585X
AV  - QW504 
U1  - 616.079  
PY  - 1989///
CY  - San Diego
PB  - Academic Press
KW  - Immune system
KW  - Evolution
KW  - Immune System
KW  - Immunity
N1  - Includes bibliographical references and index
ER  -